It's very true - some studies have found a correlation with having enough wealth to be comfortable with happiness, but above a modest amount, there was no increasing happiness after that.

If we are unhappy and poor, when we become weathly, we will now be unhappy and rich. We must seek that inner contentment to become truly satisfied. Thanks for sharing your story of the two families. It was quite sad in a way, but also enlightening. Have a great day @amiramnoam!